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Although Multimodal Large Language Models (MLLMs) have demonstrated increasingly impressive performance in chart understanding, most of them exhibit alarming hallucinations and significant performance degradation when handling non-annotated…

Computation and Language · Computer Science 2025-12-16 Xiao Zhang , Dongyuan Li , Liuyu Xiang , Yao Zhang , Cheng Zhong , Zhaofeng He

Data visualizations like charts are fundamental tools for quantitative analysis and decision-making across fields, requiring accurate interpretation and mathematical reasoning. The emergence of Multimodal Large Language Models (MLLMs)…

Artificial Intelligence · Computer Science 2025-08-26 Anku Rani , Aparna Garimella , Apoorv Saxena , Balaji Vasan Srinivasan , Paul Pu Liang

Charts are widely used to present complex information. Deriving meaningful insights in real-world contexts often requires interpreting multiple related charts together. Research on understanding multi-chart images has not been extensively…

Computation and Language · Computer Science 2026-04-24 Azher Ahmed Efat , Seok Hwan Song , Wallapak Tavanapong

Vision-language models (VLMs) hold promise for enhancing visualization tools, but effective human-AI collaboration hinges on a shared perceptual understanding of visual content. Prior studies assessed VLM visualization literacy through…

Human-Computer Interaction · Computer Science 2025-11-10 Péter Ferenc Gyarmati , Manfred Klaffenböck , Laura Koesten , Torsten Möller

Hallucinations in text generation occur when the system produces text that is not grounded in the input. In this work, we tackle the problem of hallucinations in neural chart summarization. Our analysis shows that the target side of chart…

Computation and Language · Computer Science 2023-08-11 Saad Obaid ul Islam , Iza Škrjanec , Ondřej Dušek , Vera Demberg

Data visualizations are central to scientific communication, journalism, and everyday decision-making, yet they are frequently prone to errors that can distort interpretation or mislead audiences. Rule-based visualization linters can flag…

Computer Vision and Pattern Recognition · Computer Science 2026-02-25 Valentin Bonas , Martin Sinnona , Viviana Siless , Emmanuel Iarussi

Chart understanding is a quintessential information fusion task, requiring the seamless integration of graphical and textual data to extract meaning. The advent of Multimodal Large Language Models (MLLMs) has revolutionized this domain, yet…

Computer Vision and Pattern Recognition · Computer Science 2026-02-12 Zhihang Yi , Jian Zhao , Jiancheng Lv , Tao Wang

Information visualizations such as bar charts and line charts are very popular for exploring data and communicating insights. Interpreting and making sense of such visualizations can be challenging for some people, such as those who are…

Computation and Language · Computer Science 2020-12-01 Jason Obeid , Enamul Hoque

Charts are ubiquitous as they help people understand and reason with data. Recently, various downstream tasks, such as chart question answering, chart2text, and fact-checking, have emerged. Large Vision-Language Models (LVLMs) show promise…

Chart understanding presents a unique challenge for large vision-language models (LVLMs), as it requires the integration of sophisticated textual and visual reasoning capabilities. However, current LVLMs exhibit a notable imbalance between…

Charts are the dominant medium for visualizing data, discovering patterns and trends, and communicating data driven insights, yet designing them still requires expensive human effort and expertise, such as selecting appropriate chart types,…

Human-Computer Interaction · Computer Science 2026-05-19 Mohammed Afaan Ansari , Aniruddh Bansal , Tianyi Zhou

Despite the ubiquity of visualization examples published on the web, retargeting existing custom chart implementations to new datasets remains difficult, time-intensive, and tedious. The adaptation process assumes author familiarity with…

Human-Computer Interaction · Computer Science 2026-01-21 Luke S. Snyder , Chenglong Wang , Steven M. Drucker

Captions that describe or explain charts help improve recall and comprehension of the depicted data and provide a more accessible medium for people with visual disabilities. However, current approaches for automatically generating such…

Computer Vision and Pattern Recognition · Computer Science 2023-07-12 Benny J. Tang , Angie Boggust , Arvind Satyanarayan

Large Vision-Language Models (LVLMs) have demonstrated remarkable performance across diverse tasks. Despite great success, recent studies show that LVLMs encounter substantial limitations when engaging with visual graphs. To study the…

Computation and Language · Computer Science 2025-06-09 Yingjie Zhu , Xuefeng Bai , Kehai Chen , Yang Xiang , Jun Yu , Min Zhang

The growing capabilities of multimodal large language models (MLLMs) have advanced tasks like chart understanding. However, these models often suffer from hallucinations, where generated text sequences conflict with the provided visual…

Computation and Language · Computer Science 2025-05-27 Manan Suri , Puneet Mathur , Nedim Lipka , Franck Dernoncourt , Ryan A. Rossi , Dinesh Manocha

Chart interpretation is crucial for visual data analysis, but accurately extracting information from charts poses significant challenges for automated models. This study investigates the fine-tuning of DEPLOT, a modality conversion module…

Computation and Language · Computer Science 2025-01-09 Archita Srivastava , Abhas Kumar , Rajesh Kumar , Prabhakar Srinivasan

Infographics are often an integral component of scientific documents for reporting qualitative or quantitative findings as they make it much simpler to comprehend the underlying complex information. However, their interpretation continues…

Computer Vision and Pattern Recognition · Computer Science 2022-11-17 Anukriti Kumar , Tanuja Ganu , Saikat Guha

Vision-Language Models (VLMs) have demonstrated impressive capabilities in code generation across various domains. However, their ability to replicate complex, multi-panel visualizations from real-world data remains largely unassessed. To…

Recent multimodal LLMs have shown promise in chart-based visual question answering, but their performance declines sharply on unannotated charts-those requiring precise visual interpretation rather than relying on textual shortcuts. To…

Artificial Intelligence · Computer Science 2026-01-08 Rachneet Kaur , Nishan Srishankar , Zhen Zeng , Sumitra Ganesh , Manuela Veloso

Multimodal Large Language Models (MLLMs) have shown impressive capabilities in image understanding and generation. However, current benchmarks fail to accurately evaluate the chart comprehension of MLLMs due to limited chart types and…

Computer Vision and Pattern Recognition · Computer Science 2024-06-21 Zhengzhuo Xu , Sinan Du , Yiyan Qi , Chengjin Xu , Chun Yuan , Jian Guo